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The .45 ACP (not to be confused with .45 Colt) cartridge is a very popular caliber due to its low velocity and relatively high stopping power. This caliber is associated most with the Colt M1911, logically, as ACP literally means 'Automatic Colt Pistol'. However, there are many more guns and variations on the M1911 that are chambered in .45 ACP.
John Browning's 1911 .45 ACP has been used for many cartridges over the past century. In every instance the cartridge used a bullet with a diameter that was the same or smaller than the original .451". Both the Desert Eagle and the LAR Grizzly have been offered in cartridges of .50 caliber. Both are large cartridges requiring a large, heavy pistol.
The Hellcat micro-compact pistol was introduced in 2019, featuring 11- and 13-round magazines. [13] In 2021, the company introduced the SA-35 pistol, which is their version of the Browning Hi-Power. [14] In 2022, the company introduced the 1911 Prodigy DS. [15] In 2023, the company introduced the Echelon 9mm pistol. [16]
The pistol's formal U.S. military designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original model adopted in March 1911, and Automatic Pistol, Caliber .45, M1911A1 for the improved M1911A1 model which entered service in 1926. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam War era. [10]
Browning Arms Company (originally John Moses and Matthew Sandefur Browning Company) is an American marketer of firearms and fishing gear. The company was founded in Ogden, Utah , in 1878 by brothers John Moses Browning (1855–1926) and Matthew Sandefur Browning (1859–1923).
The Colt Model 1910 was a prototype .45 ACP caliber automatic pistol developed by John Browning as an improvement of the earlier Colt Model 1909, which was rejected by the United States Department of War due to the Cavalry's belief that the design was too complicated for use by enlisted men, and because it lacked a safety mechanism. The M1910 ...
The cartridge-pistol combination was quite successful but not satisfactory for U.S. military purposes. Over time, a series of improved designs were offered, culminating in the adoption in 1911 of the "Cal. 45 Automatic Pistol Ball Cartridge, Model of 1911", a 1.273-inch-long (32 mm) round with a bullet weight of 230 grains (15 g).
It is a refinement of designs based on the work of both John M. Browning and Charles Petter which began with the Colt Model 1900, progressed to the French Model 1935A, and later the SIG P210 handgun. This action first appeared in the United States on the Browning BDA (Browning Double Action) .45 ACP caliber handgun around 1975. It represents a ...